<!DOCTYPE html>
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<head>
  <meta charset="UTF-8">
  <title>Document</title>
</head>

<body>

  <script>
    // 向对象中添加方法 up down
    let game = {
      name: '尚硅谷',
      up: function () { },
      down: function () { }
    }

    /* // 声明一个对象
    let methods = {
      up: Symbol(),
      down: Symbol()
    }

    game[methods.up] = function () {
      console.log("我可以改变形状")
    }

    game[methods.down] = function () {
      console.log('我可以快速下降')
    }
    
    console.log(game) */

    let youxi = {
      name: '狼人杀',
      [Symbol('say')]: function () {
        console.log('我可以发言')
      },
      [Symbol('zibao')]: function () {
        console.log('我可以自爆')
      }
    }
    console.log(youxi)
  </script>
</body>

</html>